| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $56,210 | $37,247 |
| 2016 | $58,214 | $39,628 |
| 2017 | $60,212 | $40,454 |
| 2018 | $60,212 | $42,035 |
| 2019 | $64,730 | $38,271 |
| 2020 | $66,560 | $40,101 |
| 2021* | $68,843 | $41,669 |
| 2022* | $71,204 | $43,298 |
| 2023* | $73,647 | $44,991 |
| 2024* | $76,173 | $46,750 |
| 2025* | $78,785 | $48,578 |